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EP1311577B1 - Dispersion aqueuse et son utilisation pour preparer des matieres de revetement, des adhesifs et des masses d'etancheite pouvant etre durcies thermiquement et avec un rayonnement actinique - Google Patents

Dispersion aqueuse et son utilisation pour preparer des matieres de revetement, des adhesifs et des masses d'etancheite pouvant etre durcies thermiquement et avec un rayonnement actinique Download PDF

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Publication number
EP1311577B1
EP1311577B1 EP01974207A EP01974207A EP1311577B1 EP 1311577 B1 EP1311577 B1 EP 1311577B1 EP 01974207 A EP01974207 A EP 01974207A EP 01974207 A EP01974207 A EP 01974207A EP 1311577 B1 EP1311577 B1 EP 1311577B1
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EP
European Patent Office
Prior art keywords
aqueous dispersion
groups
dispersion according
isocyanate
compounds
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP01974207A
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German (de)
English (en)
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EP1311577A1 (fr
Inventor
Hubert Baumgart
Uwe Meisenburg
Petra Toboll
Karl-Heinz Joost
Reinhold Schwalm
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BASF Coatings GmbH
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BASF Coatings GmbH
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    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/38—Low-molecular-weight compounds having heteroatoms other than oxygen
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/30—Low-molecular-weight compounds
    • C08G18/32—Polyhydroxy compounds; Polyamines; Hydroxyamines
    • C08G18/3203—Polyhydroxy compounds
    • C08G18/3212—Polyhydroxy compounds containing cycloaliphatic groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/08—Processes
    • C08G18/0804—Manufacture of polymers containing ionic or ionogenic groups
    • C08G18/0819—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups
    • C08G18/0823—Manufacture of polymers containing ionic or ionogenic groups containing anionic or anionogenic groups containing carboxylate salt groups or groups forming them
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/2805—Compounds having only one group containing active hydrogen
    • C08G18/2815—Monohydroxy compounds
    • C08G18/284—Compounds containing ester groups, e.g. oxyalkylated monocarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/28—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the compounds used containing active hydrogen
    • C08G18/2805—Compounds having only one group containing active hydrogen
    • C08G18/285—Nitrogen containing compounds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/72—Polyisocyanates or polyisothiocyanates
    • C08G18/77—Polyisocyanates or polyisothiocyanates having heteroatoms in addition to the isocyanate or isothiocyanate nitrogen and oxygen or sulfur
    • C08G18/78—Nitrogen
    • C08G18/7806—Nitrogen containing -N-C=0 groups
    • C08G18/7818—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups
    • C08G18/7837—Nitrogen containing -N-C=0 groups containing ureum or ureum derivative groups containing allophanate groups
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G18/00—Polymeric products of isocyanates or isothiocyanates
    • C08G18/06—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen
    • C08G18/70—Polymeric products of isocyanates or isothiocyanates with compounds having active hydrogen characterised by the isocyanates or isothiocyanates used
    • C08G18/81—Unsaturated isocyanates or isothiocyanates
    • C08G18/8141—Unsaturated isocyanates or isothiocyanates masked
    • C08G18/815—Polyisocyanates or polyisothiocyanates masked with unsaturated compounds having active hydrogen
    • C08G18/8158—Polyisocyanates or polyisothiocyanates masked with unsaturated compounds having active hydrogen with unsaturated compounds having only one group containing active hydrogen
    • C08G18/8175—Polyisocyanates or polyisothiocyanates masked with unsaturated compounds having active hydrogen with unsaturated compounds having only one group containing active hydrogen with esters of acrylic or alkylacrylic acid having only one group containing active hydrogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D175/00—Coating compositions based on polyureas or polyurethanes; Coating compositions based on derivatives of such polymers
    • C09D175/04—Polyurethanes
    • C09D175/14—Polyurethanes having carbon-to-carbon unsaturated bonds
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
    • C08G2170/00—Compositions for adhesives
    • C08G2170/80—Compositions for aqueous adhesives

Definitions

  • the present invention relates to a novel aqueous dispersion. Furthermore The present invention relates to a novel process for producing aqueous Dispersions. Furthermore, the present invention relates to the use the new aqueous dispersions for the production of thermally and with actinic radiation curable coating materials, adhesives and Sealants. Last but not least, the present invention relates to new thermal and with actinic radiation curable coating materials, adhesives and Sealants. Moreover, the present invention relates to Use of the new thermally curable and with actinic radiation Coating materials, adhesives and sealants for the production of new coatings, adhesive layers and seals.
  • Automobile series and repair coatings are used by the Automotive manufacturers and their customers are facing growing demands corrosion resistance, mechanical stability, for example Scratch resistance to washing brushes, the stone chip resistance and the overall visual impression, including the optical effects.
  • corrosion resistance for example Scratch resistance to washing brushes
  • stone chip resistance for example Scratch resistance to washing brushes
  • overall visual impression including the optical effects.
  • this is to some extent due to a multi-layered Paintwork, which on a body panel is an electrocoating, a primer coat or antistonechip primer and a colorant and / or effect multicoat paint from a color and / or effect-based basecoat and at least one clearcoat contains one above the other.
  • solvent-free or largely solvent-free clearcoats are also available such as aqueous two-component (2K) or multi-component (3K, 4K) clearcoats, Powder clearcoats, powder clearcoats or liquid, solvent-free, with actinic radiation curable clearcoats (100% systems) available.
  • Actinic radiation can be electromagnetic radiation such as visible light, UV light or X-rays or corpuscular flow how electron radiation act.
  • Aqueous two-component (2K) or multi-component (3K, 4K) clearcoat materials for example, from the German patent DE 44 21 823 A1.
  • Two component (2K) or multi-component (3K, 4K) clearcoat materials included known as essential constituents hydroxyl group-containing binder and polyisocyanates as crosslinking agents, which remain until used must be stored separately.
  • Powder clearcoats are known, for example, from German Patent DE 42 22 194 A 1 or the product information of BASF Lacke + Wegner AG, "Powder coatings", 1990 known. Powder clearcoats contain as essential Ingredients known to be epoxide group-containing binders and Polycarboxylic acids as crosslinking agents.
  • Powder slurry clearcoats are known, for example, from US Pat. No. 4,268,542 A, the international patent application WO 96/32452 and the German Patent applications DE 195 18 392 A1 and DE 196 13 547 A1 known or be in the non-prepublished German patent application DE 198 14 471.7 described. Powder slurry clearcoats contain known Powder clearcoat dispersed in an aqueous medium.
  • clearcoats curable with actinic radiation are derived from Patent specifications EP 0 540 884 A1, EP 0 568 967 A1 or US Pat. No. 4,675,234 A out. They are known to contain actinic light and / or Electron radiation curable low molecular weight, oligomeric and / or polymeric Compounds, preferably radiation-curable binders, in particular on Base ethylenically unsaturated prepolymer and / or ethylenically unsaturated Oligomerer, optionally one or more reactive diluents and optionally one or more photoinitiators.
  • Radiation-curable binders are (meth) acrylic functional (Meth) acrylic copolymers, polyether acrylates, polyester acrylates, unsaturated Polyesters, epoxy acrylates, urethane acrylates, amino acrylates, melamine acrylates, Silicone acrylates and the corresponding methacrylates.
  • Binders used which are free of aromatic structural units.
  • EP 0 928 800 A 1 is a thermally and actinic radiation curable dual cure coating material known in the art a urethane (meth) acrylate having free isocyanate groups and (Meth) acryloyl groups, a photoinitiator and an isocyanate-reactive Compound, in particular a polyol or polyamine contains.
  • This dual cure coating material provides the ability to view the property profiles of Coating material and of coating to vary and targeted to adapt to different uses.
  • the disadvantage of the known dual-cure coating materials is that it are so-called two-component systems, in which the Ingredients containing free isocyanate groups, to the application below Exclusion of water or separately from the components that the contain isocyanate-reactive groups, must be stored to a avoid premature networking. But this requires a higher one technical and planning effort in storage, production and the Application.
  • the known water-based paints and clearcoats are in the frame the production of color and / or effect multicoat paint systems processed in the so-called wet-in-wet process.
  • the aqueous clearcoats on or after their application Show penetration into the dried aqueous basecoat.
  • Powder clearcoats can have an insufficient course during curing, what leads to structured surfaces.
  • hydrophilic Self-crosslinking polyurethanes known, the olefinically unsaturated groups and contain terminal blocked isocyanate groups.
  • the blocking agents are not specified herein.
  • These known hydrophilic Self-crosslinking polyurethanes are used for the production of Graft copolymers according to the emulsion polymerization used.
  • the resulting dispersions of the graft copolymers are used for the production of aqueous basecoats and not of clearcoats.
  • the Production of multicoat color and / or effect paint systems according to the Wet-on-wet process, in which basecoat films with clearcoat films are overlaid, after which both layers are cured together, is in the Patent application not addressed. Nor does the combination of thermal curing and curing with actinic radiation (dual cure) in the Patent application described.
  • German patent DE 197 22 862 C 1 is a foreign vice A graft copolymer obtainable by dissolving in a dispersion an olefinically unsaturated, hydrophilic functional groups Polyurethane with an average of 0.05 to 1.1 polymerizable pendent and / or terminal double bonds per molecule olefinic unsaturated monomers polymerized.
  • the known externally crosslinking Graft copolymers of DE 197 22 862 C1 are present as primary dispersions before and are very good for the production of aqueous Fremdvemetzender Coating materials, in particular water-based paints suitable.
  • Crosslinking agents may contain blocked isocyanates.
  • the Crosslinking waterborne basecoats can advantageously be used for the production of and / or effect multi-layer coatings according to the wet-in-wet process be used.
  • the patent does not describe the Use of the primary dispersions for the production of clearcoats, the can be cured thermally and with actinic radiation.
  • German patent application DE 199 47 045.5 becomes a thermal and actinic radiation curable clearcoat based an aqueous dispersion which blocked hydroxyl groups Isocyanate groups and olefinically unsaturated groups and dispersing contains ionic groups.
  • the use of these clearcoats in the wet-in-wet process is not described herein.
  • German patent application DE 199 58 726.4 becomes a thermally and actinic radiation curable powder slurry described which contains at least one aqueous dispersion.
  • the dispersion is made of aliphatic polyisocyanates, compounds with isocyanate-reactive functional groups and actinic radiation activatable bonds, low molecular weight aliphatic compounds with isocyanate-reactive functional groups, compounds with isocyanate-reactive functional Groups and dispersing functional groups, neutralizing agents for the dispersing functional groups and blocking agents for Isocyanate groups and / or compounds with blocked isocyanate groups prepared, wherein the blocked isocyanate groups on the implementation of Blocking agent with polyurethane prepolymers containing isocyanate groups in the Dispersion are introduced.
  • the use of carbamate groups is described in this patent application is not described.
  • German patent application DE 199 08 013.5 discloses a structurally viscous powder slurry which is thermally curable with actinic radiation and optionally contains solid spherical particles having an average particle size of 0.8 to 20 ⁇ m and a maximum particle size of 30 ⁇ m, the powder clearcoat Slurry has a content of ion-forming dispersing groups of 0.05 to 1 meq / g, corresponding to an average acid number or amine number of 3 to 56 g KOH / g solids (MEQ acid or amine of 0.05 to 1, 0 meq / g of solids), preferably to 28 (MEQ acid or amine: 0.5) and especially to 17 (MEQ acid or amine: 0.3), a content of neutralizing agent of 0.05 to 1 meq and a viscosity of (i) 50 to 1000 mPas at a shear rate of 1000 s -1 , (ii) 150 to 8000 mPas at a shear rate of 10 s
  • the powder clearcoat slurry can contain binders with reactive functional groups such as hydroxyl groups, which can undergo thermal crosslinking reactions with crosslinking agents such as blocked isocyanates.
  • binders with reactive functional groups such as hydroxyl groups, which can undergo thermal crosslinking reactions with crosslinking agents such as blocked isocyanates.
  • carbamate groups such as -OC (O) -NH 2 is not described in the patent application.
  • German patent application DE 199 08 018.6 which is not prepublished, describes a dual-cure powder clearcoat slurry which contains constituents which contain both actinic radiation activatable groups (A) and complementary reactive functional groups (B) which undergo thermal crosslinking reactions , Carbamate groups such as -OC (O) -NH 2 are not used as groups (B).
  • the substance mixtures contain a component (A), which consists of a Polyisocyanate, a compound containing at least one with actinic radiation contains activatable bond and an isocyanate-reactive functional group, and at least one compound containing at least one carbamate group and a contains isocyanate-reactive functional group, can be produced.
  • the component (A) may contain hydrophilic groups such as poly (ethylene oxide) monoalkyl ethers. The Use of potential anionic functional groups as dispersing groups and neutralizing agents for this purpose is disclosed in U.S. Pat Patent application not described.
  • the ingredients (A) contain no isocyanate-reactive functional groups such as hydroxyl groups.
  • German Patent Application DE 100 27 292.4 unpublished, describes dual cure powder slurry clearcoats which contain a large number of different polymers, including polyurethanes, as binders.
  • the binders can contain many different complementary reactive functional groups that undergo thermal crosslinking reactions, including isocyanate-reactive functional groups and carbamate groups -OC (O) -NH 2 .
  • As the crosslinking agent aminoplast resins can be used. Details concerning the preparation of an aqueous dispersion of a polyurethane containing actinic radiation-activatable functional groups, isocyanate-reactive functional groups, dispersing functional groups such as carboxyl groups and carbamate groups are not disclosed. If carboxyl groups are used in the context of the patent application, they serve for thermal crosslinking with epoxide groups as complementary reactive functional groups.
  • the object of the present invention is to add a new aqueous dispersion find that producing new thermally and with actinic radiation hardenable coating materials allowed.
  • the Coating materials can be used as powder slurry clearcoats.
  • the new aqueous dispersion should also for the production of Adhesives and sealants be suitable.
  • coatings, adhesives and sealants based on the new aqueous dispersion should coatings, adhesives and seals provide excellent weatherability, chemical resistance, Hardness, flexibility and scratch resistance and do not tend to yellowing.
  • the new coating materials, adhesives and Sealants found that the dispersions of the invention and / or obtained by means of the production process according to the invention Contain polyurethane dispersions and hereinafter as "inventive Coating materials, adhesives and sealants ".
  • the dispersion according to the invention contains at least one polymer.
  • the content of the dispersion according to the invention on the polymer can be very broad vary. Preferably, it is 10 to 70, preferably 12 to 68, especially preferably 13 to 66, very particularly preferably 14 to 64 and in particular 15 to 62% by weight, in each case based on the dispersion according to the invention.
  • the polymer contains on statistical average at least one primary and / or secondary carbamate group of the general formula I. -OC (O) -NHR wherein the variable R is a hydrogen atom or an organic radical.
  • suitable organic radicals are alkyl groups having 1 to 18 carbon atoms, cycloalkyl groups having 3 to 12 carbon atoms, aryl groups having 6 to 20 carbon atoms and arylalkyl groups having 6 to 30 carbon atoms.
  • primary carbamate groups are used.
  • the polymer in the statistical average more than one, preferably more than two, more preferably more than three, all more preferably more than four and in particular more than five Carbamate groups of the general formula I contains.
  • the polymer contains on statistical average at least one functional group with at least one activatable with actinic radiation bond.
  • electromagnetic radiation such as near infrared (NIR), visible light, UV radiation or X-radiation, in particular UV radiation, or To understand corpuscular radiation as electron radiation.
  • Particularly suitable double bonds are, for example, in (meth) acrylate, Ethacrylate, crotonate, cinnamate, vinyl ether, vinyl ester, dicyclopentadienyl, Norbornenyl, isoprenyl, isopropenyl, allyl or butenyl groups; Dicyclopentadienyl, norbornenyl, isoprenyl, isopropenyl, allyl or Butenyl ether groups or dicyclopentadienyl, norbornenyl, isoprenyl, Isopropenyl, allyl or Butenylester weakness included.
  • the offer Acrylate groups very special advantages, so they according to the invention completely particularly preferably used.
  • the polymer in the statistical average more than one, preferably more than two, more preferably more than three, all more preferably more than four and in particular more than five of the above described activatable with actinic radiation functional groups contains.
  • the polymer contains at least one dispersant on a statistical average (potentially) ionic functional group.
  • suitable (potential) cationic groups are amino groups.
  • suitable (potential) anionic groups are carboxylic acid, sulfonic acid or Phosphonic acid groups, in particular carboxylic acid groups. they are in the present dispersion to be used according to the invention in an amount such that based on the solids of the dispersion of the invention, an acid number or amine number of 3.0 to 100, preferably 4.0 to 90, preferably 5.0 to 80, more preferably 6.0 to 70, most preferably 6.0 to 60 and in particular 6 to 50 mg KOH / g results.
  • dispersing (potentially) anionic functional groups of advantage.
  • the polymer may on statistical average at least one isocyanate-reactive functional group included.
  • suitable isocyanate-reactive functional groups are thiol, hydroxyl and / or primary and / or secondary amino groups, especially hydroxyl groups. It can from Be advantageous if the polymer is more than one, on statistical average preferred more than two, more preferably more than three, most preferably more as four and in particular more than five isocyanate-reactive functional groups contains.
  • suitable polymers are random, alternating and / or block-like constructed linear and / or branched and / or comb-like structure (Co) polymers of ethylenically unsaturated monomers, or Polyaddition resins and / or polycondensation resins. To these terms becomes on Römpp Lexikon Lacke and Druckmaschine, Georg Thieme Verlag, Stuttgart, New York, 1998, page 457, "polyaddition” and “polyaddition resins (Polyadducts) «, as well as pages 463 and 464,» Polycondensates «, "Polycondensation” and “polycondensation resins” referenced.
  • suitable polymers are linear and / or branched and / or block-like, comb-like and / or random poly (meth) acrylates or Acrylate copolymers, polyesters, alkyds, polyurethanes, acrylated polyurethanes, acrylated polyesters, polylactones, polycarbonates, polyethers, epoxy resin-amine adducts, (Meth) acrylate diols, partially saponified polyvinyl esters or Polyureas, but especially polyurethanes.
  • the polymers are suitable by conventional and known methods Prepared starting compounds which are (i) primary and / or secondary Carbamate groups and / or carbamate groups, (ii) functional groups having at least one activatable with actinic radiation Binding and / or (iii) dispersing (potentially) ionic functional group and optionally (iv) isocyanate-reactive functional groups. Or but the groups in question can be converted by polymer-analogous reactions into the Basic structures of the polymers are introduced. The resulting polymers are then dispersed in water or an aqueous medium (Secondary dispersion), unless they are in water or in an aqueous medium have been prepared (primary dispersion).
  • Particularly advantageous dispersions of the invention are Polyurethane dispersions.
  • the aliphatic, including cycloaliphatic, polyisocyanate (A) has a Isocyanate functionality from 2.0 to 6.0, preferably 2.0 to 5.0, preferably 2.0 to 4.5 and especially 2.0 to 3.5.
  • cycloaliphatic diisocyanate refers to a diisocyanate wherein at least one isocyanate group is bonded to a cycloaliphatic radical.
  • Diisocyanates are tri-ethylene diisocyanate, tetramethylene diisocyanate, pentamethylene diisocyanate, Hexamethylene diisocyanate, ethylethylene diisocyanate, Trimethylhexane diisocyanate, heptanemethylene diisocyanate or diisocyanates, derived from dimer fatty acids, as sold under the trade name DDI 1410 sold by the company Henkel and in the patents WO 97/49745 and WO 97/49747, in particular 2-heptyl-3,4-bis (9-isoeyanatononyl) -1-pentylcyclohexane, or 1,2-, 1,4- or 1,3-bis (isoeyanatomethyl) cyclohexane, 1,2-, 1,4- or 1,3-bis (2-isocyanatoeth-1-yl) cyclohexane, 1,
  • hexamethylene diisocyanate is of particular advantage and will therefore very particularly preferably used according to the invention.
  • polyisocyanates (A) having an isocyanate functionality> 2 are polyisocyanates, in particular based on hexamethylene diisocyanate, the isocyanurate, biuret, allophanate, iminooxadiazinedione, urethane, Have urea carbodiimide and / or uretdione groups and in the usual and known manner from the diisocyanates described above are.
  • the allophanate group-containing and / or isocyanurate group-containing polyisocyanates (A) especially those on the Base of hexamethylene diisocyanate, beneficial and therefore Particularly preferably used according to the invention.
  • Example more suitable Manufacturing process and polyisocyanates are for example from Patents CA 2,163,591 A, US 4,419,513 A, US 4,454,317 A, EP 0 646 608 A 1, US 4,801,675 A, EP 0 183 976 A1, DE 40 15 155 A1, EP 0 303 150 A1, EP 0 496 208 A1, EP 0 524 500 A1, EP 0 566 037 A1, US Pat. No. 5,258,482 A, US Pat No. 5,290,902 A, EP 0 649 806 A 1, DE 42 29 183 A 1 or EP 0 531 820 A 1 known.
  • suitable low molecular weight aliphatic compounds (C) with at least two, especially two, isocyanate-reactive functional groups are polyols, especially diols, polyamines, especially diamines, and Amino alcohols.
  • the polyols and / or polyamines are in addition the diols and / or diamines used in minor amounts to Branches in the polyurethanes introduce.
  • diols (C) are ethylene glycol, 1,2- or 1,3-propanediol, 1,2-, 1,3- or 1,4-butanediol, 1,2-, 1,3-, 1,4- or 1,5-pentanediol, 1,2-, 1,3-, 1,4-, 1,5 - or 1,6-hexanediol, hydroxypivalic acid neopentyl ester, neopentyl glycol, Diethylene glycol, 1,2-, 1,3- or 1,4-cyclohexanediol, 1,2-, 1,3- or 1,4-cyclohexanedimethanol, Trimethylpentanediol, Ethylbutylpropandiol, the positionally isomeric diethyloctanediols, 2-butyl-2-ethylpmpanediol-1,3,2-butyl-2-methylpropanediol-1,3, 2-phenyl-2-
  • polyols (C) examples include trimethylolethane, trimethylolpropane or Glycerol, pentaerythritol or homopentaerythritol or sugar alcohols such as Threit or erythritol or pentitols such as arabitol, adonite or xylitol or hexitols such as sorbitol, Mannitol or dulcite.
  • diamines (C) examples include hydrazine, ethylenediamine, propylenediamine, 1,4-butylenediamine, piperazine, 1,4-cyclohexyldimethylamine, hexamethylenediamine-1,6, Trimethylhexamethylenediamine, methanediamine, Isophoronediamine or 4,4'-diaminodicyclohexylmethane.
  • Suitable polyamines (C) are diethylenetriamine, tethylenetetramine, Dipropylenediamine and dibutylenetriamine.
  • Suitable amino alcohols (C) are ethanolamine, diethanolamine or Triethanolamine.
  • Suitable compounds (D) with at least one isocyanate-reactive functional group and at least one dispersing functional group, especially a (potentially) anionic group are mercapto, hydroxy, Amino or iminobecarboxylic acids, phosphonic acids or sulfonic acids such as Mercaptoacetic acid (thioglycolic acid), mercaptopropionic acid, Mercaptosuccinic acid, hydroxyacetic acid, hydroxydecanoic acid, Hydroxydodecanoic acid, 12-hydroxystearic acid, hydroxyethanesulfonic acid, Hydroxypropanesulfonic acid, mercaptoethanesulfonic acid, Mercaptopropanesulfonic acid, aminopropanesulfonic acid, glycine, Iminodiacetic acid, 2,2-dimethylolacetic acid, 2,2-dimethylolpropionic acid, 2,2-dimethylolbutyric acid, 2,2-Dimenthylolpenta
  • Suitable neutralizing agents (E) for the potentially anionic Groups of compound (D) are alkali and alkaline earth hydroxides, oxides, carbonates or bicarbonates, as well as ammonia or organic primary, secondary and / or tertiary amines, e.g.
  • Examples of suitable compounds (F) having at least one, in particular one Carbamate group and / or at least one, in particular one, in Carbamate groups are convertible functional group Hydroxyethyl carbamate or hydroxypropyl carbamate, in particular Hydroxypropyl carbamate.
  • An example of a suitable in a carbamate group convertible functional group is the cyclic ethylene carbonate group, the can be converted with ammonia into a primary carbamate group.
  • the Ethylene carbonate group itself may be modified by the reaction of the polyisocyanate, the Polyacid or the polyepoxide with, for example, glycidol and subsequent Implementation of the epoxide groups can be made with carbon dioxide. In case of Polyepoxides must be taken care that in the reaction with carbon dioxide no attached to the body epoxy groups are more present.
  • Examples of suitable compounds (G) derived from the compounds (B) to (F) are different and have an isocyanate-reactive functional group are Alcohols or monoamines (C) such as ethanol, propanol, n-butanol, sec-butanol, tert-butanol, amyl alcohols, hexanols, fatty alcohols, phenol, allyl alcohol or Ethylhexylamine. They are preferably i. V. m. higher functional Compounds (C), in particular, contribute to the gelling of the polyurethanes to avoid their production.
  • Alcohols or monoamines (C) such as ethanol, propanol, n-butanol, sec-butanol, tert-butanol, amyl alcohols, hexanols, fatty alcohols, phenol, allyl alcohol or Ethylhexylamine.
  • C Alcohols or monoamines
  • C such as ethanol, prop
  • the preparation of the polyurethane to be used according to the invention can in particular via the content of the dispersing ionic functional Groups and their degree of neutralization are controlled so that in the aqueous Dispersions the whole spectrum of solvation between molecular disperse Solution of polyurethanes and stabilized powder latex particles is present.
  • these solid fine particles have an average Particle size of 3.0 to 10 .mu.m, in particular 3.0 to 5 .mu.m, on.
  • the preparation of the erfindungsgemäBen has Polyurethane dispersion of the starting materials described above no special features on, but takes place according to the usual and well-known Methods of producing aqueous polyurethane dispersions, as they For example, in the aforementioned, the water-based paints in question Patents are described.
  • the polyurethane of the invention is subsequently in an aqueous medium converted, whereby the polyurethane dispersion according to the invention results.
  • the aqueous medium contains essentially water.
  • the aqueous Medium in minor amounts of organic solvents, with actinic Radiation curable reactive diluents, photoinitiators, initiators of radical polymerization and / or other conventional coatings additives and / or other dissolved solid, liquid or gaseous organic and / or contain inorganic, low and / or high molecular weight substances.
  • actinic Radiation curable reactive diluents with actinic Radiation curable reactive diluents, photoinitiators, initiators of radical polymerization and / or other conventional coatings additives and / or other dissolved solid, liquid or gaseous organic and / or contain inorganic, low and / or high molecular weight substances.
  • minor amount one Amount to understand what the aqueous character of the aqueous medium not picks.
  • the aqueous medium may also be pure water act.
  • the resulting Dsipersion invention can be mentioned in the aforementioned Meaning self-sustaining.
  • the dispersion according to the invention is used for the preparation of the inventive Coating materials, adhesives and sealants.
  • the coating materials of the invention may be pigmented or non-pigmented coating materials.
  • pigmented Coating materials are fillers, aqueous basecoats or solid-color topcoats.
  • non-pigmented coating materials are clearcoats, in particular Pulverslurryklarlacke.
  • the content of the coating materials of the invention on the Dispersion of the invention may vary widely and is directed especially according to the intended use, the content of the invention Dispersion of polymers and other constituents in particular, whether a crosslinking agent is used or not.
  • the content is 10 to 100, preferably 20 to 99, especially preferably 30 to 99, very particularly preferably 40 to 99 and in particular 50 to 99 wt .-%, each based on the total amount of the coating material.
  • the coating materials according to the invention contain at least a crosslinking agent containing at least one statistical average per molecule carbamate-reactive functional group and optionally at least one of previously described activatable with actinic radiation bonds having.
  • Suitable carbamate-reactive functional groups are N-methylol or N-methylol ether groups.
  • aminoplast resins are used.
  • Examples are well suited Aminoplast resins are melamine resins, guanamine resins or urea resins. Any suitable for transparent topcoats or clearcoats Aminoplast resin or a mixture of such Aminoplastharzen used become.
  • the proportion of crosslinking agent in the coating material according to the invention can vary widely and is mainly based on its functionality, the Purpose and after the other existing components.
  • the proportion of crosslinking agent is from 0.1 to 90, preferably 0.5 to 80, more preferably 0.8 to 70, most preferably 1.0 to 60 and in particular 1.5 to 50 wt .-%, each based on the total amount of The coating material.
  • the coating material of the invention may further comprise at least one Additive included.
  • the selection depends mainly on the purpose of the Dual-Cure mixture according to the invention.
  • these are Additives under the processing and application conditions of the coating material according to the invention and are volatile by water not decomposed.
  • the coating material according to the invention as a filler, topcoat or Basecoat used, it contains as additives color and / or effect Pigments in customary and known amounts.
  • the pigments can be made inorganic or organic compounds and can effect and / or coloring.
  • the dual-cure coating material according to the invention therefore ensures a universal due to this variety of suitable pigments Range of application of the dual-cure coating materials and enables the realization a variety of hues and optical effects.
  • metal flake pigments such as commercially available Aluminum bronzes, according to DE 36 36 183 A 1 chromated aluminum bronzes, and commercial stainless steel bronzes and non-metallic effect pigments, such as For example, pearlescent or interference pigments used.
  • effect pigments such as commercially available Aluminum bronzes, according to DE 36 36 183 A 1 chromated aluminum bronzes, and commercial stainless steel bronzes and non-metallic effect pigments, such as For example, pearlescent or interference pigments used.
  • suitable inorganic color pigments are titanium dioxide, Iron oxides, sicotrans yellow and carbon black.
  • suitable organic coloring pigments are thioindigo pigments indanthrene blue, cromophthal red, Irgazine orange and Heliogen green.
  • the dual-cure coating material according to the invention especially as fillers, organic and inorganic fillers in conventional and contain known, effective amounts.
  • suitable fillers are Chalk, calcium sulfate, barium sulfate, silicates such as talc or kaolin, silicas, Oxides such as aluminum hydroxide or magnesium hydroxide or organic Fillers such as textile fibers, cellulose fibers, polyethylene fibers or wood flour.
  • pigments and fillers can also be pigmented in the Dual-cure coating materials according to the invention are incorporated.
  • additives described above can also in the adhesives and sealants according to the invention may be present, provided they are suitable for these uses, which the skilled person is based on his general knowledge.
  • the preparation of the coating materials, adhesives and Sealants has no peculiarities, but takes place in conventional and known manner by mixing the above-described ingredients in suitable mixing units such as stirred tank, dissolver, stirred mills or Extruder according to the for the production of the respective invention Coating materials, adhesives and sealants suitable method.
  • the adhesives of the invention are used to prepare the adhesive layers according to the invention on primed and unprimed substrates.
  • sealants of the invention are used to prepare the inventive seals on and / or in primed and ungrounded Substrates.
  • the coating materials of the invention are used in particular for the production single or multi-layer clearcoats and / or color and / or effect multicoat paint systems on primed and unprimed Substrates.
  • the coating materials of the invention are found in these Uses as particularly advantageous. Very special advantages result their use for the preparation of clearcoats, in particular in the Framework of the so-called wet-on-wet process, in which a basecoat, in particular a water-based paint, on the primed or unprimed substrate applied and dried, but not cured, after which on the Basecoat layer a clearcoat according to the invention, in particular a applied powder slurry clearcoat and the resulting Clearcoat together with the basecoat film thermally and with actinic radiation hardens.
  • Substrates are all surfaces to be painted by curing of the layers thereon under the combined application of heat and actinic radiation are not harmed into consideration.
  • Suitable substrates include metals, plastics, wood, ceramics, stone, Textile, fiber-reinforced, leather, glass, glass fibers, glass and rock wool, mineral and resin-bound building materials, such as gypsum and cement boards or roof tiles, as well as associated with these materials.
  • the coatings according to the invention adhesive layers or Seals also for applications outside the automotive OEM and the car refinishing suitable.
  • they come especially for the Painting, gluing and / or sealing of furniture, windows and Doors, of buildings in the interior and exterior and for the industrial Coating, including coil coating, container coating and impregnation or coating of electrical components, into consideration.
  • the Industrial coating they are suitable for painting, bonding and / or the sealing of virtually all parts for the private or industrial Use like radiators, household appliances, small metal parts like screws and nuts, hubcaps, rims, packaging or electrotechnical components such as Motor windings or transformer windings.
  • primers can be used in the usual and well-known way from electrodeposition paints (ETL). getting produced.
  • ETL electrodeposition paints
  • KTL cathodic
  • ABS ABS, AMMA, ASA, CA, CAB, EP, UF, CF, MF, MPF, PF, PAN, PA, PE, HDPE, LDPE, LLDPE, UHMWPE, PC, PC / PBT, PC / PA, PET, PMMA, PP, PS, SB, PUR, PVC, RF, SAN, PBT, PPE, POM, PUR-RIM, SMC, BMC, PP-EPDM and UP (abbreviated to DIN 7728T1) painted, glued or sealed become.
  • a Pretreatment as with a plasma or with flames, subjected or with a hydroprimer be provided.
  • the application of the coating materials, adhesives and Sealants, in particular the coating materials according to the invention can be determined by all common application methods, e.g. Spraying, doctoring, Brushing, pouring, dipping, soaking, trickling or rolling done. It can rest the substrate to be coated as such, the Application device or system is moved. However, that too can coating substrate, in particular a coil to be moved, the Application system rests relative to the substrate or moved in a suitable manner becomes.
  • spray application methods are used, such as Compressed air spraying, airless spraying, high rotation, electrostatic spray application (ESTA), optionally combined with hot spray application such as Hot-air hot-spraying.
  • the applications can be carried out at temperatures of max. 70 be carried out to 80 ° C, so that reaches appropriate application viscosities be, without that in the momentarily acting thermal load a Change or damage of the coating material and its if necessary, reprocessing overspray. That's how it works Hot spraying be designed so that the coating material only very briefly in the or just before the spray nozzle is heated.
  • the spray booth used for the application for example, with a optionally be operated temperature-controlled circulation, with a suitable absorption medium for the overspray, z. B. the coating material itself, is operated.
  • the application when illuminated with visible light of a Wavelength of about 550 nm or performed with exclusion of light. hereby be a material change or damage to the invention Coating material and overspray avoided.
  • this layer thickness is included 10 to 150, preferably 15 to 120, more preferably 20 to 100 and in particular 25 to 90 ⁇ m, in the case of topcoating it is 5 to 90, preferably 10 to 80, more preferably 15 to 60 and especially 20 to 50 microns, in the case of the basecoat, it is 5 to 50, preferably 10 to 40, more preferably 12 to 30 and in particular 15 to 25 microns, and in the case of Clearcoats it is 10 to 100, preferably 15 to 80, especially preferably from 20 to 70 and in particular from 25 to 60 ⁇ m.
  • Curing can take place after a certain rest period. It can be a duration from 30 seconds to 2 hours, preferably 1 minute to 1 hour and especially 1 minute to 30 minutes to have.
  • the rest period is used, for example, for the course and the degassing of applied layers or for the evaporation of volatile components such as Solvent or water.
  • the rest period can be increased by the application Temperatures up to 80 ° C are supported and / or shortened, provided that no damage or changes in the applied layers occur, about a premature complete networking.
  • the curing is carried out with actinic radiation, in particular with UV radiation, and / or electron beams. If necessary, she can with actinic radiation from other sources of radiation performed or supplemented become.
  • electron beams is preferably below Inertgasatmospreheat worked. This can be done, for example, by feeding Carbon dioxide and / or nitrogen applied directly to the surface of the Layers are guaranteed.
  • Radiation sources and optical aids For curing with actinic radiation, the usual and known Radiation sources and optical aids applied.
  • suitable Radiation sources are high or low pressure vapor lamps, which optionally doped with lead to a beam window up to 405 nm open, or electron beam sources. Their arrangement is known in principle and can the circumstances of the workpiece and the process parameters be adjusted.
  • For complicated shaped workpieces such as Automotive bodies can use the areas that are not directly accessible to radiation (Shadow areas) such as cavities, folds and other design-related Undercuts with point, small area or omnidirectional, connected with an automatic movement device for the irradiation of Cavities or edges, to be cured.
  • the curing can be done in stages, d. H. by multiple Exposure or irradiation with actinic radiation. This can too alternately, d. h., that alternating with UV radiation and Electron radiation is cured.
  • the thermal curing also has no special features, but takes place by the usual and known methods such as heating in a convection oven or irradiation with IR lamps. As with the curing with actinic radiation, the thermal curing can be carried out gradually.
  • the thermal curing takes place at a temperature> 90 ° C, preferably 90 to 180 ° C, more preferably 110 to 160 ° C and in particular 120 to 150 ° C for a time of 1 minute to 2 hours, more preferably 2 min up to 1 h and especially 3 min to 30 min.
  • Thermal curing and curing with actinic radiation can occur simultaneously or used alternately. Be the two curing methods Used alternately, for example, with the thermal cure begun and terminated with the curing with actinic radiation. In In other cases, it may prove advantageous to cure with Actinic radiation to begin and end hereby.
  • the expert can Härhmgsmethode, which is the most advantageous for each individual case where appropriate, with the aid of its general expertise determine simple preliminary tests.
  • Adhesive layers and seals according to the invention have also been disclosed extreme and / or rapidly changing climatic conditions Excellent adhesion and sealing ability even over long periods time.
  • the colorants produced with the aid of the coating method according to the invention and / or effect multicoat paint systems are what color, effect, shine and D.O.I. (distinctiveness of the reflected image), of the highest optical Quality, have a smooth, structure-free, hard, flexible and scratch-resistant surface, are weather, chemical and etch-resistant, they do not yellow and show no cracking and delamination of the layers.
  • Example 1 was repeated, except that instead of the allophanate according to Preparation Example 1 376 parts by weight of a commercial isocyanurate of Hexamethylene diisocyanate (Desmodur® N 3300 from Bayer AG) used were.
  • a commercial isocyanurate of Hexamethylene diisocyanate (Desmodur® N 3300 from Bayer AG) used were.
  • the clearcoats 3 to 6 according to the invention were prepared by mixing the constituents specified in Table 1 in a dissolver (rotational speed: 3,000 rpm, disk diameter: 3 cm, duration: 30 min).
  • the aminoplast resin and the catalyst were premixed and then stirred into the dispersion.
  • the material composition of the clearcoats of Examples 3 to 6 according to the invention component Parts by weight: example 3 4 5 6 Polyurethane dispersion 1 100 - 100 - Polyurethane dispersion 2 - 100 - 100 Byk® 348 0.4 0.4 0.4 0.4 0.4 Irgacure® 184 2.7 2.7 2.7 2.7 Cymel® 325 - - 3 3 3 catalyst - - 0.06 0.06
  • the clearcoats of Examples 3 and 4 are thermal self-crosslinking clearcoats.
  • the clearcoats of Examples 5 and 6 are thermal externally crosslinking clearcoats.
  • the clearcoat 3 for example 8 the clearcoat 4, for the Example 9 of the clearcoat 5 and used for the example 10 of the clearcoat 6.
  • test panels were irradiated with UV radiation at a dose of 1500 mJ / cm 2. Thereafter, they were baked at 150 ° C. for 30 minutes (dual cure). This resulted in a basecoat of a dry film thickness of 16 .mu.m and a clearcoat of a dry film thickness of 45 .mu.m.
  • the scratch resistance was determined after the sand test.
  • the paint surfaces were loaded with sand (20g quartz silver sand 1.5-2.0 mm).
  • the sand was placed in beakers (ground plan cut) fixedly mounted on the test panels of Examples 7-10.
  • the movement of the loose sand caused damage to the paint surfaces (100 double strokes in 20 s).
  • the test surfaces were cleaned from abrasion, carefully wiped under a cold water jet and then dried with compressed air.
  • the gloss was measured according to DIN 67530 before and after damage (measuring direction perpendicular to the direction of the scratch). Table 2 gives an overview of the results obtained.
  • the clearcoat 3 for example 12 the clearcoat 4, for Example 13 of the clearcoat 5 and used for the example 14 of the clearcoat 6.
  • Example 11 to 14 the clearcoats 3 to 6 were applied to the test panel, as commonly used for the measurement of micro-penetration hardness. The same conditions were used for curing as in Examples 7 applied to 10. The dry film thickness of the invention Clearcoats 11 to 14 were 45 ⁇ m.
  • clearcoat 3 for example 16 clearcoat 4 was used for Example 17 of the clearcoat 5 and used for the example 18 of the clearcoat 6.
  • Examples 15 to 18 were the clearcoats 3 to 6 on steel panels with applied white basecoats. The same became for the hardening Conditions as in Examples 7 to 10 applied.
  • the Dry layer thickness of the inventive clearcoats 11 to 14 was included 45 ⁇ m.
  • Table 4 gives an overview of the tendency of clearcoats 11 to 14 to yellow.
  • the yellowing resistance was determined by colorimetric determination of yellowness according to the Cielab method. The results prove the high yellowing resistance.
  • the yellowing resistance of the inventive clearcoats according to the yellowness determination according to the Cielab method Examples Beginning: After a week: L * a * b * L * a * b * 15 89.0 -2.2 2.6 88.4 -2.1 2.5 16 88.8 -2.1 4.8 88.7 -2.3 3.6 17 87.9 -2.3 3.6 87.8 -2.3 3.6 18 88.7 -2.0 3.4 88.7 -2.0 3.2

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Polyurethanes Or Polyureas (AREA)
  • Paints Or Removers (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Adhesives Or Adhesive Processes (AREA)
  • Sealing Material Composition (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Macromonomer-Based Addition Polymer (AREA)

Claims (30)

  1. Dispersion aqueuse qui contient au moins un polymère comportant en moyenne statistique
    (i) au moins un groupe carbamate primaire et/ou secondaire,
    (ii) au moins un groupe fonctionnel comportant au moins une liaison activable par un rayonnement actinique, et
    (iii) au moins un groupe fonctionnel ionique dispersant.
  2. Dispersion aqueuse selon la revendication 1, caractérisée en ce que les groupes fonctionnels ioniques dispersants sont présents en une quantité telle qu'il en résulte, par rapport à la matière solide de la dispersion, un indice d'acide ou un indice d'amine de 3,0 à 100 mg de KOH/g.
  3. Dispersion aqueuse selon la revendication 1 ou 2, caractérisée en ce que les groupes fonctionnels ioniques dispersants sont des groupes anioniques.
  4. Dispersion aqueuse selon l'une quelconque des revendications 1 à 3, caractérisée en ce que le degré de neutralisation des groupes fonctionnels ioniques dispersants est d'au moins 60 % en moles.
  5. Dispersion aqueuse selon la revendication 4, caractérisée en ce que le degré de neutralisation est d'au moins 95 % en moles.
  6. Dispersion aqueuse selon l'une quelconque des revendications 1 à 5, caractérisée en ce que des groupes carbamate primaires sont utilisés.
  7. Dispersion aqueuse selon l'une quelconque des revendications 1 à 6, caractérisée en ce que le polymère comporte en moyenne statistique au moins deux groupes carbamate.
  8. Dispersion aqueuse selon l'une quelconque des revendications 1 à 7, caractérisée en ce que le polymère comporte
    (iv) au moins un groupe fonctionnel réactif avec un isocyanate.
  9. Dispersion aqueuse selon la revendication 8, caractérisée en ce qu'on utilise en tant que groupes fonctionnels réactifs avec un isocyanate des groupes thiol, hydroxy et/ou des groupes amino primaires et/ou secondaires.
  10. Dispersion aqueuse selon l'une quelconque des revendications 1 à 9, caractérisée en ce qu'on utilise en tant que liaisons activables par un rayonnement actinique des liaisons simples carbone-hydrogéne ou des liaisons simples ou doubles carbone-carbone, çarbone-oxygène, carbone-azote, carbone-phosphore ou carbone-silicium.
  11. Dispersion aqueuse selon la revendication 10, caractérisée en ce qu'on utilise des doubles liaisons carbone-carbone.
  12. Dispersion aqueuse selon la revendication 11, caractérisée en ce que les doubles liaisons sont présentes sous forme de groupes (méth)acrylate, éthacrylate, crotonate, cinnamate, éther vinylique, ester vinylique, dicyclopentadiényle, norbornényle, isoprényle, isopropényle, allyle ou butényle ; des groupes éther dicyclopentadiénylique, norbornénylique, isoprénylique, isopropénylique, allylique ou buténylique, ou des groupes ester dicyclopentadiénylique, norbornénylique, isoprénylique, isopropénylique, allylique ou buténylique.
  13. Dispersion aqueuse selon l'une quelconque des revendications 1 à 12, caractérisée en ce qu'on utilise en tant que groupes fonctionnels anioniques dispersants des groupes carboxylate, sulfonate et/ou phosphonate.
  14. Dispersion aqueuse selon l'une quelconque des revendications 1 à 13, caractérisée en ce qu'on utilise en tant que polymère au moins un polyuréthanne.
  15. Dispersion aqueuse selon la revendication 14, caractérisée en ce qu'on peut préparer le polyuréthanne en faisant réagir
    (A) au moins un polyisocyanate aliphatique ayant une fonctionnalité isocyanate de 2,0 à 6,0 avec
    (B) au moins un composé comportant au moins un groupe fonctionnel réactif avec un isocyanate ainsi qu'au moins une liaison activable par un rayonnement actinique,
    (C) au moins un composé aliphatique de faible masse moléculaire, comportant au moins deux groupes fonctionnels réactifs avec un isocyanate,
    (D) au moins un composé comportant au moins un groupe fonctionnel réactif avec un isocyanate et au moins un groupe fonctionnel potentiellement ionique dispersant,
    (E) au moins un agent de neutralisation pour les groupes fonctionnels dispersants potentiellement ioniques du composé (D), et
    (F) au moins un composé comportant au moins un groupe carbamate primaire et/ou secondaire et/ou au moins un groupe fonctionnel qui peut être converti en un groupe carbamate, et au moins un groupe réactif avec un isocyanate, ainsi qu'éventuellement
    (G) au moins un composé comportant un groupe fonctionnel réactif avec un isocyanate, différent des composés (B) à (F).
  16. Dispersion aqueuse selon la revendication 15, caractérisée en ce qu'on utilise en tant que composés (A) des polyisocyanates aliphatiques comportant des groupes isocyanurate, biuret, allophanate, imino-oxadiazinedione, uréthanne, urée, carbodiimide et/ou uretdione.
  17. Dispersion aqueuse selon la revendication 16, caractérisée en ce qu'on utilise des polyisocyanates (A) à base d'hexaméthylènediisocyanate, comportant des groupes allophanate et/ou isocyanurate.
  18. Dispersion aqueuse selon l'une quelconque des revendications 15 à 17, caractérisée en ce qu'on utilise comme composés (B) l'alcool allylique, l'éther 4-butylvinylique, des esters hydroxyalkyliques et hydroxycycloalkyliques de l'acide (méth)acrylique et/ou des produits de réaction d'esters cycliques et d'esters hydroxyalkyliques et hydroxycycloalkyliques de l'acide (méth)acrylique.
  19. Dispersion aqueuse selon l'une quelconque des revendications 15 à 18, caractérisée en ce qu'on utilise en tant que composés (C) des polyols, des polyamines et/ou des aminoalcools.
  20. Dispersion aqueuse selon l'une quelconque des revendications 15 à 19, caractérisée en ce qu'on utilise en tant que composés (D) des acides mercapto-, hydroxy-, amino- ou iminocarboxyliques, -phosphoniques ou -sulfoniques.
  21. Dispersion aqueuse selon l'une quelconque des revendications 15 à 20, caractérisée en ce qu'on utilise des groupes fonctionnels (potentiellement) anioniques dispersants et, en tant qu'agent de neutralisation (E), des amines organiques.
  22. Dispersion aqueuse selon l'une quelconque des revendications 15 à 21, caractérisée en ce qu'on utilise en tant que composés (F) des carbamates d'hydroxyalkyle.
  23. Dispersion aqueuse selon l'une quelconque des revendications 15 à 22, caractérisée en ce qu'on utilise en tant que composés (G) des alcools et/ou des monoamines.
  24. Utilisation de la dispersion aqueuse selon l'une quelconque des revendications 1 à 23, pour la préparation de matières de revêtements, d'adhésifs et de matériaux d'étanchéité.
  25. Utilisation selon la revendication 24, caractérisée en ce que les matières de revêtement sont utilisées pour la production de revêtements de vernis et/ou de revêtements de peinture colorants et/ou à effet, mono- ou multicouches.
  26. Utilisation selon la revendication 24 ou 25, caractérisée en ce que les matières de revêtement sont utilisées en tant qu'apprêts de garnissage, peintures de finition universelles, peintures de fond et/ou vernis.
  27. Matières de revêtement, adhésifs et matériaux d'étanchéité, qui contiennent ou consistent en au moins une dispersion selon l'une quelconque des revendications 1 à 23.
  28. Matières de revêtement, adhésifs et matériaux d'étanchéité selon la revendication 27, caractérisés en ce qu'ils contiennent au moins un aminoplaste en tant qu'agent de réticulation.
  29. Matières de revêtement, adhésifs et matériaux d'étanchéité selon la revendication 27 ou 28, caractérisés en ce qu'on utilise en tant qu'aminoplastes des résines mélamine, des résines guanamine et/ou des résines urée.
  30. Matières de revêtement, adhésifs et matériaux d'étanchéité selon l'une quelconque des revendications 27 à 29, caractérisés en ce qu'ils contiennent en tant que catalyseur au moins un acide sulfonique organique bloqué avec des amines.
EP01974207A 2000-08-24 2001-08-22 Dispersion aqueuse et son utilisation pour preparer des matieres de revetement, des adhesifs et des masses d'etancheite pouvant etre durcies thermiquement et avec un rayonnement actinique Expired - Lifetime EP1311577B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10041634 2000-08-24
DE10041634A DE10041634C2 (de) 2000-08-24 2000-08-24 Wäßrige Dispersion und ihre Verwendung zur Herstellung von thermisch und mit aktinischer Strahlung härtbaren Beschichtungsstoffen, Klebstoffen und Dichtungsmassen
PCT/EP2001/009699 WO2002016459A1 (fr) 2000-08-24 2001-08-22 Dispersion aqueuse et son utilisation pour preparer des matieres de revetement, des adhesifs et des masses d'etancheite pouvant etre durcies thermiquement et avec un rayonnement actinique

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Publication Number Publication Date
EP1311577A1 EP1311577A1 (fr) 2003-05-21
EP1311577B1 true EP1311577B1 (fr) 2005-11-09

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ATE309283T1 (de) 2005-11-15
BR0113473A (pt) 2003-07-15
KR100794431B1 (ko) 2008-01-16
CA2420255A1 (fr) 2003-02-21
DE10041634A1 (de) 2002-03-14
DE10041634C2 (de) 2002-10-17
WO2002016459A1 (fr) 2002-02-28
DE50108020D1 (de) 2005-12-15
JP2004517973A (ja) 2004-06-17
PL362552A1 (en) 2004-11-02
EP1311577A1 (fr) 2003-05-21
ES2252300T3 (es) 2006-05-16
KR20030029846A (ko) 2003-04-16
US20040068028A1 (en) 2004-04-08
AU2001293785A1 (en) 2002-03-04
MXPA03000788A (es) 2003-06-04
US7915321B2 (en) 2011-03-29

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